Why is Sima Yi afraid of Cao Rui

Because Sima Yi was in awe of the monarch Cao Rui.

Cao Pi and Cao Rui are the supreme rulers of the Cao Wei regime, the emperor is the spiritual pillar of the country, and he is absolutely correct politically.

Cao Pi reigned for six years, and basically did nothing. When Cao Rui was in power, he first personally led the army into Chang'an, and sent Zhang He to lead the army to defeat Ma Jian at Jieting, which made Zhuge Liang's first Northern Expedition, which was originally very smooth, fail.

Zhuge Liang made many northern expeditions, returned in vain, and died of illness in Wuzhang Plain, in addition, Cao Rui sent Sima Yi to pacify Liaodong, which was something that even Cao Cao did not do, so it can be seen that Cao Rui is a monarch with achievements, and Sima Yi did not dare to have any objection during the Cao Rui period.

In the face of such a powerful monarch, Sima Yi naturally had a sense of awe, and when Cao Rui died, Cao Fang, who was only eight years old, succeeded to the throne, and when Cao Rui entrusted Sima Yi, he should have hoped that Sima Yi would be loyal to the little emperor like Zhuge Liang, but Sima Yi was not such a person.

But Cao Rui has no choice, because his age has arrived, he can only hand over this eight-year-old child to Sima Yi and Cao Shuang, and Cao Rui doesn't know that Cao Shuang is not Sima Yi's opponent at all, but what does he have; When Cao Rui was there, Sima Yi was naturally jealous, and when Cao Rui died.

Cao Shuang's treatment of the emperor Cao Fang at that time was no better than Dong Zhuo and Cao Cao's treatment of Emperor Han Xian. Cao Shuang was unpopular, so Sima Yi was able to quickly control the imperial court after the Gaopingling Incident, and then those who opposed Sima were all local generals, which was the Huainan Three Rebellions after that.

When Cao Shuang was in power, Cao Fang could not control the imperial court, and the Cao family had already collapsed. If the emperor was not Cao Fang, but any of the three Cao Cao, Cao Pi, and Cao Zhi, Sima Yi would never dare to have any ideas, and with the abilities of these three people, he could definitely integrate a powerful imperial court. In the final analysis, Sima Yi was not afraid of a certain person, but a united Cao court.

Cao Rui is also a talented person, Zhuge Liang has made many northern expeditions, returned in vain, and died of illness in Wuzhang Plain, in addition, Cao Rui sent Sima Yi to pacify Liaodong, which is something that even Cao Cao did not do, it can be seen that Cao Rui is a monarch with achievements, Sima Yi did not dare to have any objection during the Cao Rui period, but unfortunately Cao Rui's life was too short, and he only lived for thirty-six years.

In the face of such a powerful monarch, Sima Yi naturally had a sense of awe, and when Cao Rui died, Cao Fang, who was only eight years old, succeeded to the throne, and when Cao Rui entrusted Sima Yi, he should have hoped that Sima Yi would be loyal to the little emperor like Zhuge Liang, but Sima Yi was not such a person.